Big Bore Cylinder Barrel Kit: Polaris Scrambler 50 (2001-2003) Yamaha YF60 This set of head stock

This set of head stock bearings are taper roller style and have been manufactured to replace the original set of steering bearings on an F650 for the years and models shown above

Yamaha IT 465 (1981-1982)

Honda XL 350 K (1974-1976)

Kawasaki Z / KZ 750 H LTD (1980-1983)

To replace OEM: 33410-05321 / 33410-05302 / 33410-05350

Big Bore Cylinder Barrel Kit: Polaris Scrambler 50 (2001-2003) Yamaha YF60 This set of head stockBrand new big bore cylinder barrel kit to fit: Polaris 50 Scrambler (2001 2003). This cylinder kit is an upgrade on the original Polaris 50 Scrambler for the years and models shown above. The top end will go from 50cc to 70cc. This kit includes: cylinder (barrel jug) cylinder head piston kit gaskets To replace OEM cylinder: TBC Minarelli Horizontal 2T A C (Air Cooled) Engine.